Remedy Comfort Gel Memory Foam Mattress - 7 inches Twin XL Memory Foam Type: Polyurethane, Thickness: 7 Inch, Firmness: Medium, Density: 7 inch 4 pound/50D Memory Foam Care Instructions: Spot Clean Only, Air Dry Allergy Free, Product Dimensions: 80.5" x 40" x 7" Care instructions: Outer Cover: Remove Foam, Machine Wash Cold with Like Colors, Gentle Cycle, Tumble Dry Low Polyurethane Foam: Spot Clean Only, Air Dry